The month in detail
What to expect in August
In the height of summer, Cancún sees high temperatures (88°F). Heat is a factor for outdoor activities. Expect rain on 35% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. March (9.2/10) is significantly better if possible.
August ranks 10 out of 12 months in Cancún. Compared to July: 8 pts more rainy days, −0.5h of sun per day.
This month's conditions
What it's like in August
UV index
8 · very high
protection essential
Feels like
oppressive heat
24°
Sea
28°C
warm, ideal
Daylight
12.7h of daylight
Air quality
good
AQI 30
Compare
Is August the right month?
The best month in Cancún is March (9.2/10), 3.7 pts higher than August.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Cancún
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Cancún
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.
Country · Mexico
🗣️LanguageSpanish
💶CurrencyMexican Peso ($)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJuly · 88°F
❄️Coolest monthJanuary · 79°F
🌧️Rainiest month ⓘSeptember · 43%
🏖️ Beach trip
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in August
If August doesn't convince you for this destination, compare with others.
Location
Where is Cancún ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
MexicoTemperate oceanic climate with a 9.2 → 5.2 gap between best and worst month. 10 years of ERA5 data to choose by project.
21.16°N · 86.85°W
Questions
Frequently asked questions
What is the best time to visit Cancún?
March is the best month with 82°F highs, 73°F lows, 9.3h of sunshine and 14.0% rainy days. The months of March & April offer comparable conditions.
How many hours of sunshine does Cancún get in March?
Cancún averages 9.3 sunshine hours per day in March. It is the sunniest month with a climate score of 8.8/10.
What is the rainiest month in Cancún?
September is the most unfavourable month with September has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Cancún in March?
In March, overnight lows reach 73°F, while afternoon highs average 82°F.
Is Cancún good in winter?
In winter (December-February), Cancún scores 8.1/10 on average — Acceptable conditions for cultural visits.. The best month overall remains March with a score of 8.8/10.
When should you avoid Cancún?
September is the most difficult month to visit Cancún, with September has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Cancún in August?
In August, the sea averages 83°F in Cancún: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Cancún in August?
The average UV index reaches 8 in August in Cancún (very high), with about 12.7h of daylight. Protection essential.